Device for turning rubber tubes



Patented Feb. 28, I899.

w. A. PRATT. DEVICE FOR TURNING RUBBER TUBES.

(Application filed Mar. 25, 1897.)

(No Model.)

II'ITNESSES 4 INVENTOR (H. Zmii.

A ttorm tube and the rubber tube held between the UNITED STATES PATENTOFFICE.

WILLIAM A. PRATT, OF STAMFORD, CONNECTICUT.

DEVICE FOR TURNING RUBBER TUBES.

SPECIFICATION forming part of Letters Patent No. 620,356, dated February28, 1899.

To all whom it may concern.-

Be it known that I, WILLIAM A. PRATT, of Stamford, in the county ofFairfield and State of Connecticut, have invented certain new andusefullmprovements in Devices for Turning Rubber Tubes forNursing-Fixtures; and I do herebyvdeclare the following to be a full,

clear, and exact description of the invention, such as will enableothers skilled in the artto which it appertains to make and use thesame.

This invention relates to the method and apparatus for turning rubbertubes; and the object of the same is to provide a simple method anddevice whereby rubber tubes used in connection with nursing-fixtures maybe turned so that the inner surface thereof may be thoroughly cleansed.

The invention consists in the novel features of the constructionhereinafter fully described and claimed, and illustrated by theaccompanying drawings, in which- Figure 1 is a view illustrating thetubes constituting the apparatus used in my invention. Fig. 2illustrates the parts in position for turning the tube. Fig. 3illustrates the tube partly turned.

Referring to the accompanying drawings, 1 indicates a short metallictube which is open I at both ends and tapering on its inner surfaceadjacent one end.

2 is a rod somewhat longer than the tube 1, said rod being tapered atone end at 3 and provided with a slot 4.

In practicing my method for turning tubes the short metallic tube l isplaced within the rubber tube which is to be turned until the latterprojects a short distance beyond the outer edge thereof. The rod 2 isthen used' to press the rubber tube over the edge of the metal tube, thetapered end of the rod being inserted within the large end of the metalrod and metal tube. The rod is then pressed Application filed March 26,1897- Serial No. 629,120. (No model.)

within the metal tube as far as possible until it engages the innertapered surface thereof, and is then turned with the right hand, theleft hand holding the tube until it binds securely. The thumb andforefinger of the right hand are then placed just above the point offastening, and the rubber tube is pushed toward the operator, the samebeginning to turn, and by following up this operation with the fingersthe tube will be entirely turned. After the rubber tube is turned thedevice is disconnected by removing the rod from the metal tube.

From the foregoing description it will be seen that I have produced amethod and apparatus for turning rubber tubes whereby the same arequickly and readily turned for the purpose of thoroughly cleansing andre- 7 moving the dirt which adheres to the'inner surface thereof.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

In an apparatus for turning tubes, the combination with a short tubeinteriorly tapered adjacent one end and adapted to be placed within therubber tube to be turned with the end of the latter projecting beyondthe end of the former, of a rod tapered at one end and provided with atransverse slot in its taered end, said rod being adapted to be in ertedwithin said tube and to engage the end of the rubber tube to cause thesame to impinge between the inner tapered surface of the tube and therod, substantially as set forth. a

' In testimony whereof I have-signed this specification in the presenceof two subscribing witnesses.

' WILLIAM A. PRATT. Witnesses:

J .HOWARD BALLARD, -FRANK R. ALLEN.

